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Clean up and ensure proper usage of alloca()

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This replaces all calls to alloca() with ast_alloca() which calls gcc's
__builtin_alloca() to avoid BSD semantics and removes all NULL checks
on memory allocated via ast_alloca() and ast_strdupa().

(closes issue ASTERISK-20125)
Review: https://reviewboard.asterisk.org/r/2032/
Patch-by: Walter Doekes (wdoekes)
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Merged revisions 370642 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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Merged revisions 370643 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@370655 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kinsey Moore
2012-07-31 20:21:43 +00:00
parent 6c23a60f80
commit 9b16c8b0f6
64 changed files with 317 additions and 399 deletions
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4
channels/chan_alsa.c
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@@ -182,7 +182,7 @@ static snd_pcm_t *alsa_card_init(char *dev, snd_pcm_stream_t stream)
ast_debug(1, "Opening device %s in %s mode\n", dev, (stream == SND_PCM_STREAM_CAPTURE) ? "read" : "write");
}
hwparams = alloca(snd_pcm_hw_params_sizeof());
hwparams = ast_alloca(snd_pcm_hw_params_sizeof());
memset(hwparams, 0, snd_pcm_hw_params_sizeof());
snd_pcm_hw_params_any(handle, hwparams);
@@ -223,7 +223,7 @@ static snd_pcm_t *alsa_card_init(char *dev, snd_pcm_stream_t stream)
if (err < 0)
ast_log(LOG_ERROR, "Couldn't set the new hw params: %s\n", snd_strerror(err));
swparams = alloca(snd_pcm_sw_params_sizeof());
swparams = ast_alloca(snd_pcm_sw_params_sizeof());
memset(swparams, 0, snd_pcm_sw_params_sizeof());
snd_pcm_sw_params_current(handle, swparams);